Huge cloud of white/grey smoke from exhaust if I floor it on the first start of the day.

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mantrid

Active Member
Posts
69
Hi guys,

I have a discovery 4 TDV6 2010, as the title says, when driving the car first time in the morning or if left for circa 6 hours or more, if I don't floor it and let the engine warm up for a while, say a 5 minute drive and I then floor it, I get no smoke whatsoever, the car drives perfectly fine.

Does anyone have any idea what is causing this because it's confusing the hell out of me?

Thanks in advance, Mantrid.
👍
 
miktdish said:
Cold engine, the ECU is likely compensating by 'over fuelling' (i'm guessing as I don't have a Ford Lion/TDV6 engine).
Click to expand...
Thanks, I forgot to mention that the colour of the smoke is white/gray but persists in the air for a while until dispersed by the wind, regardless of outside temps.

I didn't know what overfueling was so I just googled it and on first review it looks like that would lead to black smoke coming out the exhaust but as stated, white/grey smoke?
 
lynall said:
I believe so I think it was all the TwinTurbo 3 L engines
Click to expand...
sorry I am a bit of a noob.
is this mod safe, what is the purpose of doing this please?
why would my problem only exist on cold/first start then go away?
 
It's the second symptom here, occurs only with cold egine:

1723022771593.png
 
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